20285109

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{617}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 31718232

約数和(自身を除く): 11433123

約数列:

[1, 3, 9, 13, 39, 117, 281, 617, 843, 1851, 2529, 3653, 5553, 8021, 10959, 24063, 32877, 72189, 173377, 520131, 1560393, 2253901, 6761703, 20285109]

約数ペア:

[(1, 20285109), (3, 6761703), (9, 2253901), (13, 1560393), (39, 520131), (117, 173377), (281, 72189), (617, 32877), (843, 24063), (1851, 10959), (2529, 8021), (3653, 5553)]